444 
INDEX. 
Page. 
Folis, F. J., work done by 205 
Fortymile River, Alaska, placer deposits 
on 47 
Fourth of July Creek, Alaska, gold min- 
ing on. 
48 
Franklin furnace, New Jersey, zinc and 
manganese deposits at 214-217 
Franklinite, deposits of, New Jersey 214 
Friendsville coal, Illinois, character and 
thickness of 292-293 
Frio,clays, Texas, character of 346 
Fuller, M. L, paper by 333-335 
work done by 30 
Fuller, M. L., and Ashley, G. H., paper 
by 284-293 
Fuller's earth, analyses of 393, 
395.396,397,398-399 
deposits of, Florida 392-399 
Georgia.. 392-399 
publications concerning, list of 400 
Furnaceville, Cal., limestone beds near . . 365 
Galena, deposits of, Arkansas 193-196 
deposits of, Kansas 200 
Kentucky 212 
Missouri 200 
Utah.. 114 
Gas, natural, deposits of, Indiana 334-335 
publications concerning, list of 356 
Gas fields, investigations of 30 
Geologic folios, character of 1()-11 
list of ..'. 11-13 
Georgia, coal fields in, area and produc- 
tion of . 258 
fuller's earth deposits in 392-399 
gold and pyrite deposits of 57-63 
iron ores of _ 233-242 
manganese deposits in 232 
ocher deposits in 427-432 
work in :{<) 
Girty, G. H., cited 109 
Glass, manufacture of, from iron slag ... 230 
Glenn Creek gold mining district, Alaska, 
geology of. 50-51 
location of 47,49-50 
placers of 51-55 
production of 52-53 
Globe quadrangle, Arizona, work in 24 
Gold, deposits of, Alaska 41-56, 71-75 
deposits of, Arizona 140 
California 25 
Colorado 25-26 
Georgia 57-62 
Idaho 26 
Montana 66-70,88-89 
Nevada 27,81-87 
Utah 31-40, 115, 116, 119-120 
Washington 76-80 
work on 31-91 
publications concerning, list of. 19-28,90-91 
Gold and pyrite deposits of the Dahlonega 
district, Georgia, paper on 57-63 
Gold Hill, N . C . , copper deposits at 184 
Gold King claims, Pearl, Colo., copper 
deposits at 107 
Page. 
Gold Mountain district, Nevada, mining 
in 87 
Gold Run, Alaska, placer gold on 51,52-53 
Goodyear claim, Alaska, copper ores at. . 145 
Grand Junction, Ten::., clay pits at 384-386 
Graphite, publications concerning 439-440 
Gravel, deposits of, Illinois 360 
Greenbrier limestone, Virginia, section of 410 
Griswold, W. T., paper by. 336-344 
work done by 30 
Grand Republic shaft, Pearl, Colo., cop- 
per deposits at ... 168-169 
Gulf Coastal Plain oil field, geology of. 346-347 
location of 345 
oil pools of .... 348-351 
topography of 345-346 
Gypsum, analyses of 411,412 
deposits of, Virginia 406-416 
publications concerning, list of 417 
Hall Rapids, Yukon River, Alaska, coal 
bed at. 282 
Hardin, N. D., analysis by 411 
Hatchettite, composition of 298 
Hawkey e claims, Pearl, Colo., copper de- 
posits at 165 
Hayes, C. W., cited 141,148 
papers by 29, 232, 257-269, 345-355, 41S-423 
work done by.. 29,30 
Hayes, C. W., and Eckel,E. C, papers by. 233- 
242,427^32 
Hematite, deposits of, Georgia 237-241 
deposits of, North Carolina 245-246 
Tennessee 245-246 
Hennepah district, Nevada, gold deposits 
in.. 81 
Hess Creek, Alaska, coal beds near 279 
Hico, Tenn., clay pits near 388 
Hidden, W. E., cited.. 94 
Hillebrand, W. F., chemical determina- 
tions by 114 
Hirz Mountain, California, limestone beds 
at 365 
Hobbs, W. H., paper by.. 98 
paper by, title and notice of 20 
Holland coal, Indiana, character and 
thickness of 288,289 
Holly Springs, Miss. , clay pits at 384 
Holston marble, Tennessee, occurrence 
of... 366-370 
Holston River, North Fork of, Virginia, 
salt and gypsum deposits on .406-416 
Hopedale oil pool , Ohio , developments of . 342-343 
Houchin Creek, Indiana, coal near 287 
Howard, G. W., analyses of asphalt by. 353-354 
Hubnerite, occurrence of 103 
Humboldt, Tenn . , clay pits near 391 
Hunter Creek, Alaska, gold mining on... 55 
Hydrocarbons, classification of 296-298 
general features of 298-300 
Idaho, coal fields in, area and production 
of 258 
work in . „„ 26 
